Fog machine



FIG. 1 is a perspective view of a fog machine showing the claimed design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a rear elevational view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines depict portions of the fog machine that form no part of the claimed design.

The oblique shading lines in the drawings are included to denote the reflective quality of surface planes on the fog machine. 

CLAIM The ornamental design for a fog machine, as shown and described. 